Very useful chart here. The following U.S. report on the British General Staff was originally published in Tactical and Technical Trends, No. 11, Nov. 5, 1942. Larger Images here: Notes on the British General Staff, Arms and Services, WWII Tactical and Technical Trends, No. 11, November 5, 1942 (Lone Sentry) No will somebody please tell me what C-branch was responsible for post-war? For instance: 40 Infantry Division C. Branch | The National Archives